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cmd: implement preimage dump and import cmds

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This commit is contained in:
rjl493456442
2018-03-14 20:15:30 +08:00
committed by Péter Szilágyi
parent 933972d139
commit b6b6f52ec8
3 changed files with 121 additions and 0 deletions
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6
ethdb/database.go
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@ -29,6 +29,7 @@ import (
"github.com/syndtr/goleveldb/leveldb/filter"
"github.com/syndtr/goleveldb/leveldb/iterator"
"github.com/syndtr/goleveldb/leveldb/opt"
"github.com/syndtr/goleveldb/leveldb/util"
)
var OpenFileLimit = 64
@ -121,6 +122,11 @@ func (db *LDBDatabase) NewIterator() iterator.Iterator {
return db.db.NewIterator(nil, nil)
}
// NewIteratorByPrefix returns a iterator to iterate over subset of database content with a particular prefix.
func (db *LDBDatabase) NewIteratorByPrefix(prefix []byte) iterator.Iterator {
return db.db.NewIterator(util.BytesPrefix(prefix), nil)
}
func (db *LDBDatabase) Close() {
// Stop the metrics collection to avoid internal database races
db.quitLock.Lock()